Hemopsis dissipatalis ( Lederer, 1863 )

Rao, B. Sumit Kumar & Sivaperuman, Chandrakasan, 2025, Contribution to the knowledge of Pyraloid moths (Lepidoptera, Pyraloidea) from the Andaman and Nicobar Islands, India, Journal of Insect Biodiversity and Systematics 11 (1), pp. 129-149 : 136

Hemopsis dissipatalis ( Lederer, 1863) ( Figs 2I, 4G, 5G, 6D)

Botys dissipatalis Lederer, 1863:376 . TL: Indonesia ( Ambon Island).

Hemopsis dissipatalis Kirti & Rose, 1987:379–380 .

Material examined. 2♂♂, Makachua, Little Nicobar , 14-XI-2018, Coll. B. Sumit Kumar Rao, Reg. No. ZSI / ANRC /T-16114 ; 1♂, Makachua, Little Nicobar , 19-XI-2018, Coll. B. Sumit Kumar Rao, Reg. No. ZSI / ANRC /T-16115 ; 2♀♀, Makachua, Little Nicobar , 22-XI-2018, Coll. B. Sumit Kumar Rao, Reg. No. ZSI / ANRC /T-16116 ; 2♀♀, Makachua, Little Nicobar , 28-X-2019, Coll. B. Sumit Kumar Rao, Reg. No. ZSI / ANRC /T-16117 ; 1♀, Makachua, Little Nicobar , 27-X-2019, Coll. B. Sumit Kumar Rao, Reg. No. ZSI / ANRC /T-16588 ; 8♂♂, Bird watching Point , Great Nicobar Biosphere Reserve , 26-XII-2019, Coll. B. Sumit Kumar Rao, Reg. No. ZSI / ANRC /T-10835; T-10836, T-10837, T-10838, T-10839, T-10840, T- 10841, T-10842; 2 Ex , Bird Watching Point, Great Nicobar Biosphere Reserve, 24-IX-2019, Coll. Dr. Sivaperuman and Party, Reg. No. ZSI / ANRC /T-10844, T-10845 ; 1♂, Bird Watching Point , Great Nicobar Biosphere Reserve, 15-XI-2018, Coll. K.C. and Party, Reg. No. ZSI / ANRC /T-11043 ; 5♂, Galathea 42.7 km, Great Nicobar , 18-XII-2019, Coll. B. Sumit Kumar Rao, Reg. No. ZSI / ANRC /T-11638, T-11639, T- 11640, T-11641, T-10843 .

Diagnosis. Wingspan 22 – 24 mm. Hemopsis dissipatalis , is externally similar to Hemopsis angustalis (Snellen, 1890) but can be separated by dark brown ground colour of forewing; basal area with a light yellow reniform patch; median area with four light yellow patches; postmedial area with a light yellow, irregularly rectangular patch and a small light yellow reniform patch; wide marginal shade on hindwing. In Male genitalia by uncus membranous, without chaetae; valva broad, rounded at apex with a process on the costal margin; narrow harpe; saccus elongated and nearly rectangular; phallus with many slender, spinose arranged cornuti. In female genitalia by narrow and moderate length ductus bursae and corpus bursae with semi-circular sclerotised arc like signum.

Distribution. India (Assam), Indonesia, Japan, Korea, Laos, Nepal, Russia, Sri Lanka, Taiwan ( Kirti & Rose, 1987).

Remarks. Reported for the first time from Nicobar group of Islands (Great Nicobar & Little Nicobar Islands). Representative individuals of this species were observed in traps placed in the primary forest’s margins.